Roundabout rolling-mill.



B. VERSEN.

. ROUNDABOUT ROLLING MILL.

APPLIUATION zum) AUG. 16. 1910V` L, Patented Nov. 19,1912.y

BRUNO vnnsnit, tir-DORTMUND! Gnnnanr.

V ROUNDABUT RCLJING-MLL annessa.

Speccetion of Letters Patent.

Paiement nov. to, raie.

Application tiled .august 16, 1936. Serial No. 571MB;

To alliwhom it may concern: Be it known that I, BRUNO Vnnsnn, a subject of the German Emperor, and resident of Dortmund, Germany, have invented certain new and useful Improvements in Roundabout RollingMills, of which the following is a specification. I

The invention relates generally to aV continuous rollin@r mill and particularly a rolling min in wich the rollin ranged conoei'itricallj7 aroun a common axis with the rollers of the respective trains an ranged at an angle of 90 to each other. D

The main object of the present invent-lon wis to utilize the annular arrangement ,of the rollers with respect to 'each other to allow the bar being rolled to be properly handled b v the successive rolls without the necessity of the usual turning of they bar in the pasv Nsagre from one set orolls to the next.

The invention in its preferred details ot' l construction will be described in thei'ollowing specification. reference being had particularly t0 the accompanying drawings 20 in vvhich-v Figure l is a vertical section of a rolling mill constructed in accordance with my invention. Fig. 1a is a view similar to Fig. 1, but illustrating a motor on the central shaft. Fig. 2 is a plan of `a -mill in accordance Wit-h that type shown at the right of Fig. 1. Fig.l 3 is a diagrammatic view showing the connection of a series of mills for a particular type oaf plant. Fig. 4- is a dlagrannnatic plan of a guide from one mill to another as illustrated in Fig. 3. Fig. 5

is an enlarged sectional view ofthe guide tween the respective sets of rolls of the mill. Fig. 6 is a detail view of the means "to for controlling the pressure between said gear and the driving pulley.

In detailed structure.' and with particular reference to that construction shown at the left side ot' Fig. 1.' the improved mill. comprisingr a foundation frame (u) on which the respective trains are inadeup, as pairs of 'coperating rolls (b). The respective pairs of rolls are concentrically arranged u'it'h relation to a centra-l axis, as will be clearly noted from Fig. Q of the drawings. and each coperating piiir of rolls are arranged at anangle of to the plane Vof the bed (a).

nished throughV ani' approxin'iatelj7 driven central shaft (f), supported at its lower end trains are ar-y The. motive pouer for the mill is fun.

in a suitable bearinand at intermediate points by conical Frame structures (d), which are directly and indirectly supported from the bed (a). The frame structures (d) are for the purpose of the present invention similarly constructed including bearing sleeves (1) and conical canopies (2) projecting therefrom.v The lower pair Ot' supporting frames open upwardly while the upper pair open downwardly. A rigid frame structure is thus provided as Will be obvious. Secured upon the shaft (f) between theupper pair of frame structures is a gear (c), a similar gear being arranged between the frame structures of the lower pair. The respective rolls (b) carrying shafts (3lI which project trom the rolls aresupported \in suitable bearings projecting from the frame structures (d). andare terminalljprovided with gears (e) meshing Withrespective gears (C), the shafts of adjacent rolls being projected in opposite directions, that vis one pair will project dotvn Wardly and inwardly being operated b v the lowermost gear (c) while the shafts of the next pair of rolls project upwardlyY and inwardly and are operated by the upper gear (c). B v this construction the alternate rolls are driven from opposite points, so. that as will be plain from Fig. 1 of the drawings,` the respective adjacent rolls are set at an angleof 900 to each other. The gears (c) of the respective sets of rolls in the direction of travel of the material being operated upon bear such ratio to the driving gear and to cach other that the rotation of each successive pair of rolls is increased, as is usually necessary in mills of this` type to take care of the increased length of material.

In the type of mill where the rolls are to be driven at comparatively7 high speed as in handling small material. the rolls arranged exactlv as previousl)v described maj' be trictionallv driven in order to diminish the noise as much as possible. Under these circumstances. reference beingr had to the right hand side of Fie'. 1. the gears (c) are replaced by rictional Wheels (7o). and the driving gears (c) replaced b v friction rollers (cl. The friction rollers (e)" are journaled in stirrup shaped frames (c) secured to brackets (Zi. supported -from the respective frames (d). Levers (m) project from these frames, respective levers of each pair of rolls being spring pressed in the outward direction, or in that direction necessary to se- `the nent it 4is. guided through the medium of' fa 'channel shaped guide member (p). ,'llds guide member is arranged between each inail', of-rolls and includes a supporting plate (@jisecured t'o one of the frames (d) preferably the lower one of the upper pair and :a guide plate g5) arranged at an angle to the plate (4). i t suitable intervals throughout the lengths of the channels (p) are nrranged guide rollers (q). 4These guide rollers are formed with channels or peripheral grooves 6) having a contour corresponding 'with the cross section of the bar being rolled.

Under ordinary circumstances the guide rollers may be rotated by the travel of the bar thereagainst, but in special c1rcum stances as where the sectional area of the barbeing rolled is simple, or the guides long,

'said guide rollers may be independently and positively driven through the medium of pulleys (7') fixed upon shafts (7) carrying said guide' rollers which pulleys may be driven from any suitable power by cables '(8) all as particularly seen in Fig. 5.

The mill maybe operated directly from an electric motor where high speeds are de- 35 laired, as shown at (9) in Fig. 1', or the shaft (f) may be driven through the medium of gears (71,) and (i) through a shaft (g), as shown at the left hand side of Fig. 1.

In operating this type of mill the travel of the'bar is, as Will be understood, from one set of rolls to the next throughout the series of trains prouided in the respective mill, the bar being automatically gixided in its travel from one set of rollers to the next by means of 'the guide and rollers therefor, as previously described. In this operation the handling of the bar is in etlect automatic as by the opposite disposition of adjacent rolls.

the tin produced on the bar by one set of rolls is eliminated by the next set of rolls without the necessity of turning the bar. It will be thus understood that: the bar to be rolled after leaving one groote or matrix is guided circularly along these guide rollers .mill to the next.

without any sudden change of direction, the centrifugal force pressing it into the groove of the guide rollers whereby it is conveyed surely and without any7 rotation from one During this passage any shortening which may happen to occur does not encounter any obstacle, as the chord being shorter than tlie are permits such shortening without interference, as will be readily obvious.

The improved type of mill readily lends itself for carrying out a determined rolling ing mills may be readily combined/'in different arrangements. As noted/ diagram* matically in Fig. 3, I have shown the combination of four such rolling mills arranging In this particular combination miill I is driven directly by the motor/(M) While mills II and III are driven through the medium of the transmission gears (S) and (S). Mill used as a finishing' mill. The mills are connected by guide'chamiels similar in all re-. spects to the/ guide channels (p) .previously described/,vso that the material is directed from onel mill to the next succeeding mill as shown by the parallel lines in said Fig. 3. In this connection it 'is to be nderstood that the/conveying channels or guides from one mill to the other are arranged tangentially lto the respective rolling trains of the connected mills, having between such points of travel through the finalmill.y

In Fig. 3, is shown diagrammatically two `complete mill sets, in each of which mill I is taken as the mill at which theurolling starts.- One mill setincludes mills I--IIL- and -IIl, while the other set includes mills above detailed `construction of the mill applies to each mill in each set. Therst set lar er profiles ofmaterial.

aving now fully 'described my said invention, what I claim and desire lto secure by Letters Patent, is:

A 1. In a rolling mill of the kind described the combination with a framework of aversaid shaft, a plurality of rolling frames radially and annularly arran ed around said central shaft, and means or `driving said rolling frames from said central shaft, substantially as andfor the urpose set forth. i

the `combination with a framework of a central shaft, a driving motor provided on said shaft, a plurality of rolling frames radially and annularly arranged around said central shaft, and means for driving said rolling frames from said central shaft, substantially as and for the purpose setforth.`

3. In a rolling mill of the kind' described the combination with a fra eworkof a central shaft, 'a plurality of rol g frames radially and annularly arranged aroundsaid central shaft and means for driving said stantially as and for the purpose set forth'.

the combination with a frame-work of 'a program, in that the several continuousrolL,

IV is driven in any suitable manner and is' is adapted for rolling irons of middle orv small strength, while the' second is used forv tical central Jshaft, means for `driving the- 2. In a rolling'mill o the kind described' thesemills to show 18 rolling operations.

connection a gradual curve corresponding to the curvature imparted to the bar in its* I-II-III-IV. All description of the` rolling frames fromsai'd central shaft, ,Sub-

4. In a rolling mill of the. class described, l

central shaft, a plurality of rolling trains arranged annularly around said central shaft on a part of a circle, the rolls of neighboring trams being arrangedv atan angle of 90 Vdegrees with reference to each other, inclined driving gearssecuied to said central shafgnpconnections between' said driving gears and the rolling tra-ins and means for operating lsaid central shaft. p v5.3111 a rolling mill of the kind described,

the combination Awith a frame-work, of a central shaft, a plurality of rolling trains arranged annular-ly around said shaft `on a partof av circle, the rolls of neighboring trains .beingarran'ged'at an angle of 90 degreeswith reference to eachother, inclined driving gears secured to said central shaft,

` a means connecting said rolling trains with V said driving gears, means for controlllng the Apressure between said latter means and drivvingfgears and means for operating the central shaft.

B fn a rolling mill of the kinddescribed i' the combination .with a framework ofa central shaft, a plurality of rolling trains concentricallyarranged around said shaft at suitable intervals Yfrom each 'other and lon a art of a circlef` means for driving said. ro ing trains, circularly bent channel shaped guidesbetw'een the passesof the various rolling trains and guide rollers provided with a suitable groove and' projecting into the said guide channels,substantially as and for the purpose set orthi l 7. In a rolling mill ofthe kind described the combination with a framework of a central shaft, a plurality of rolling trains ar- Iranged on a part of a concentric circle around -said shaft and at suitable ,intervals from each other, means A,for driving 'said rolling trains, guide channels bent to an arc of -tral sha-ft, means a circle and interposed between the passes of every two neighboring rolling trains and a plurality of suitably grooved guide pulleys in the said guide channel and means for driving said pulleys, substantially as and for the purpose Vset forth.

8. In a rolling plant the combination' of a plurality of rolling mills comprising each a central shaft, a plurality of rolling trains.

- the first rolling train of the next mill, Substantially as and for the purpose set forth.

9. In arolling plant the combination of a plurality of rollin mills comprising each a cent-ral shaft, a p urality of rolling trains arranged around-said shaft on a part of' a circle 'which is concentric to the shaft', means for driving said rolliner trains from the ccntral shaft, means for driving by groups the shafts of said rolling mills, curved guide 10 channels-provided between the passes of the rolling trains of each rolling mill and a curved guide channel bet-Ween the pass of the last rolling train of one mill and the pass of the rst rolling train ofthe followlng mill, substantially as and for the purpose set forth.

In tetiinony whereof I have hereunto set,V

my handin presence of two witnesses.

` BRUNO VERSEN. L. s.] Witnesses; Cime'. l, WRIGHT,

Gil 

